Suggestions for fast solo AT/ powersets?

So, I've finally battled my way up to level 50 with my main hero, a Grav/Time controller. He's great fun in a group but virtually impossible to solo with, and I'm looking to plow my way up with a second considerably quicker. I also played an NRG/NRG blaster back in the dark ages, and I've had my fill of floor-hugging for a while.

So, great theorycrafters: what combination of AT and power sets would you recommend for a combination of survivability and leaving a mountain of bodies in my wake?

Scrapper.

Masterminds. Got my Necro/Dark to 50 recently, went fairly smoothly. Elite bosses and anything with caltrops can give you troubles but otherwise you shouldn't have any problems solo. Especially if you go for one of the stronger set like Demons or Bots.

From personal experience I can tell you if you don't have any paticular aversion to Masterminds, Bots/Time gets very, very powerful on its own. Although admittedly Bots low level damage isn't all that stellar, prior to 32 I'm not sure about its soloing speed. I've also heard Demons/Thermal is extremely powerful solo, not to mention survivable, but that's a combination I'm less experienced with.

Scrappers and brutes.

from 1-50 the best is a brute, scrappers a fairly close second.

MM's are amazing but they only really get so at higher levels. They aren't bad at lower levels but they aren't a brute

fire/rad controllers are pretty amazing
ill/rad controllers are amazing after about 22 and really after you get epic pools for more damage

Fastest thing I ever solo'd to 50 was a kat/wp scrapper, since with divine avalanche I could easily farm an outdoor lethal farm in AE pretty much all the way to 50. He was also the /only/ toon I've ever solo'd to 50.

My first was elec/wp brute holy crap that was gdlk.

SR or nin stalkers probably also have an easy time.

Fire/Dark Corrupter

Broadsword/Willpower scrapper

Sonic/Ice blaster

Fire/dark controller

all of these are ridiculously powerful.

With i22, Stalkers are now a very good contender. They do very good damage, likely out damaging Scrappers thanks to both Assassin's Focus and the new uninterruptible AS. Throw in the Stalker ATO proc into hide, and you'll be following up every AS with a crit.

We've been saving Paragon City for eight and a half years. It's time to do it one more time.

I'm sure ANY brute could do it, but I really enjoyed my Dark Melee/Energy Aura brute. The to-hit debuffs in the dark attacks stack VERY nicely with the defense of Energy Aura.

Now that he's pretty much capped out, though, I'm going to be starting a similar path as you. I think I'm going to be rolling either a Broadsword/Willpower Scrapper or a Titan Weapons/Fiery Aura. (Possibly Street Justice and one of the two secondaries...haven't decided yet).

Have FUN!!

Trick Arrow / Archery Defender.

Wait... that won't be easy... that'll be hard. Oops.

Mind/Time Controller is a boss killer if you like control toons...Dark/Dark is great too

Archery/Mental Blaster if you MUST go blaster...

Katana/Regen or Dark Scrapper or brute, brute is more survivable, scrapper will do a little more damage.

Titan Weapons/Regen or WP or Fire will be good

SS/Fire Brute is a monster, some end issues but damage is nothing you're short on.

Dark/Fire tank if you're going to play a tank.

DM/Shield Scrapper is also good as is Fire/Shield.

Claws/SR or Kat/SR are extremely fun to play but are somewhat late bloomers as SR really gets rolling in late 20's early 30's